iRex Forum

whopper · Joined: 04 Nov 2008 Posts: 19

thats strange, I use yesterday a bit, and when I start the device this morning it have 3 bars only.

Im going to test few days more.

GrumpyOldMan · Joined: 11 Oct 2008 Posts: 151 Location: Los Angeles

papaathome · Joined: 15 Oct 2008 Posts: 136 Location: Nijmegen (NL)

Since v1.02 it sometimes happens that the battery of my dr1000s are is flat the next morning while it had at least three bars left (75% charged) when shutting down. It did not do this with v1.01
I know of the occasional 'incomplete shutdown problem' and always check for this condition and have seen that twice since 1.02.

Does this flattening happen to every dr1000s or not? I hope it is a software related problem that can be solved with one of the next upgrades.

Kind regards,

André Steenveld.

tribble · Joined: 04 Aug 2006 Posts: 645 Location: Bonn, Germany

I had this happening aswell. Someone mentioned that this problem did not occur when he safely removed the SD card before turning the device off. I followed that advice and had no problem since.
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Gogolo · Joined: 22 Sep 2007 Posts: 86

tribble · Joined: 04 Aug 2006 Posts: 645 Location: Bonn, Germany

Gogolo · Joined: 22 Sep 2007 Posts: 86

Ok, thanks!
Have a nice day Smile

Gogolo

grifter · Joined: 03 Dec 2008 Posts: 11

I tested the battery life yesterday. It lasted ~8 hours, not too bad. Can't wait for 1.5.

omro · Joined: 03 Dec 2008 Posts: 151

parallax · Joined: 14 Dec 2008 Posts: 1

Hello,

I have been reading these posts, but am not sure what to make of posted battery life numbers. I was wondering about usage during discharge. Here are my own results, in context:

I recently bought a DR100S. After charging overnight, I updated to 1.03 and then charged again for about an hour until I had four bars and a green LED. This is my usage before the message came up prompting me to recharge:

Charged: Four days ago.
Updated software, then charged briefly: Three days ago.
Usage: Yesterday, 2 hours reading with page flips every couple of minutes (technical material).
Usage: This morning, 1 hour reading with page flips every couple of minutes.
Usage: This afternoon, 2 hours reading while making brief notes on most pages, with page flips every few minutes.

Totals: 5 hours actual use. 3 hours just reading, and 2 hours reading and taking notes with stylus.

This is my first full charge and discharge. This is a recent purchase, so I did not use the DR1000S before updating software to 1.03. I have not changed any settings from the default, so the digitizer is always on.

What have others experienced?

This is a long enough time working with journal articles or technical books to be useful, so I am pleased so far. The display, of course, is very, very good at presenting full-page pdfs of this type, the page changes are fast enough, and the note-taking and erasing both seem to work well. As a research tool, I think the DR1000S will be very useful.

=parallax

omro · Joined: 03 Dec 2008 Posts: 151

My third full run down has resulted in almost 5 hours. About 2 of those were actually spent reading, the rest were the reader just left on the side displaying a page. The only stylus use was to access menus faster than through the buttons.

Fly · Joined: 20 Nov 2008 Posts: 25 Location: Germany

I never had any charging longer than 4 hours at maximum and I didn't feel an increase in the charging times because of firmware (even the very first charge was done after less than 4 hours). Running firmware 1.03 (before 1.02 and 1.01).

Shall I leave it "plugged" longer than the charging display is turned on to increase the battery capacity? I think when the LED and the display at the right-bottom corner dont display a "charging" there is no way to charge it higher once the charging cycle is displayed as finished...

One thing I tried is running the battery lower by turning on the reader again after it shutdown itself. So to squeeze out the last bit of energy left and trying to increase the span between min-max (but usually there is supposed to be no memory effect with Li-Ion batteries).

grukx · Joined: 14 Jan 2009 Posts: 2 Location: Norway

I have been looking to buy the DR1000 for a while now, however I have serious doubts about the battery situation. I have not yet decided whether I should go ahead with the purchase or not, the currently reported 6 hours of continues usage is most likely not even enough to complete a full fiction book without recharging. I know the coveted 1.5 version of the software will alleviate this some, however given the power consumption figures quoted the device seems underpowered battery-wise.

Do current versions of DR1000 still ship with a soldered non-replaceable battery? The expected EU directive that mandates replaceable batteries will force irex to change this anyway, why not please customers and make this available immediately on new devices?

The product ships with a one year warranty that includes battery failures, but if after one year I need a new battery and want to replace this myself, what warranty would I be breaking? I realize that I may break the unit if I do this incorrectly. Would it be possible to replace the battery with a larger capacity battery or does space considerations inside the DR1000 make this impossible?

papaathome · Joined: 15 Oct 2008 Posts: 136 Location: Nijmegen (NL)

Shaggy · Joined: 20 Apr 2007 Posts: 1101 Location: Maryland, USA